J70.0
Acute pulmonary manifestations due to radiation
J70.0 (also written J700) is a billable ICD-10-CM diagnosis code for acute pulmonary manifestations due to radiation. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 8 codes in category J70 (Respiratory conditions due to other external agents). The Alphabetic Index lists it under 9 entries. Its coding notes include a Use additional code instruction and 11 Excludes2 entries.
Use additional code
Add the listed code as a secondary code, if known.
- code (W88-W90, X39.0-) to identify the external cause
Also from chapter/block level (7 notes)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (11 notes)
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- smoke inhalation (T59.81-)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Care settings
How CMS programs treat this code. These are CMS claim edits and list entries, not coverage or eligibility rules.
Home Health Primary
Accepted as the primary (principal) diagnosis on a home health claim. The Home Health Grouper assigns it to the MMTA - Respiratory clinical group.
Source: CMS Home Health Grouper Software v07.2.26, effective October 1, 2026Hospital CC
Counts as a complication or comorbidity (CC) when reported as a secondary diagnosis on an inpatient claim. It does not count when the principal diagnosis is one of the 124 codes in its exclusion list. Some MS-DRGs also ignore a CC or MCC that defines the DRG.
Source: CMS MS-DRG Definitions Manual v44, effective October 1, 2026, Appendix CInclusion terms
Conditions classified to this code.
- Radiation pneumonitis
Notes
Also from chapter/block level (1 note)
- When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e.g. tracheobronchitis to bronchitis in J40).
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 9 entries
- Bronchitis (diffuse) (fibrinous) (hypostatic) (infective) (membranous), acute or subacute (with bronchospasm or obstruction), due to, radiation
- Disease, diseased, respiratory (tract), acute or subacute NOS, due to, radiation
- Edema, edematous (infectious) (pitting) (toxic), lung, due to, radiation
- Effect, adverse, radiation (diagnostic) (infrared) (natural source) (therapeutic) (ultraviolet) (X-ray) NOS, pneumonitis
- Effect, adverse, radiation (diagnostic) (infrared) (natural source) (therapeutic) (ultraviolet) (X-ray) NOS, pulmonary manifestations, acute
- Inflammation, inflamed, inflammatory (with exudation), respiratory, upper, acute, due to radiation
- Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved), radiation
- Pneumonitis (acute) (primary), radiation
- Poisoning (acute), radiation